* Public holidays in Iran *

تعطیلات عمومی در ایران

Iran uses three official calendar systems: the Iranian calendar as the main date, the lunar Islamic calendar for religious events, and the Gregorian calendar for international events (like May Day).

The surfeit of public holidays has been a subject of concern for almost 30 years. A substantial number of unofficial holidays are added each year to the national holidays that further aggravate the situation.